210020120010 has 24 divisors (see below), whose sum is σ = 546052312260. Its totient is φ = 56005365312.

The previous prime is 210020119921. The next prime is 210020120027. The reversal of 210020120010 is 10021020012.

210020120010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 207064131849 + 2955988161 = 455043^2 + 54369^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 210020119974 and 210020120001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1166778355 + ... + 1166778534.

Almost surely, 2^210020120010 is an apocalyptic number.

210020120010 is an abundant number, since it is smaller than the sum of its proper divisors (336032192250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210020120010 is a wasteful number, since it uses less digits than its factorization.

210020120010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333556902 (or 2333556899 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 210020120010 its reverse (10021020012), we get a palindrome (220041140022).

The spelling of 210020120010 in words is "two hundred ten billion, twenty million, one hundred twenty thousand, ten".